Connecting Orbeon 4.7 PE with mysql database issue

I'm trying to setup Orbeon 4.7 PE with mysql database (Orbeon running on tomcat 7). I have followed the instructions on this link but it doesn't work, I keep getting this error message:

Name [jdbc] is not bound in this Context. Unable to find [jdbc].    

here is my configrations:
server.xml
<GlobalNamingResources>
                             
        <Resource name="jdbc/mysql" auth="Container" type="javax.sql.DataSource"
                        initialSize="3" maxActive="10" maxIdle="20" maxWait="30000"
                        driverClassName="com.mysql.jdbc.Driver"
                        poolPreparedStatements="true"
                        validationQuery="select 1 from dual"
                        testOnBorrow="true"
                        username="orbeon"
                        password="orbeon"
                        url="jdbc:mysql://localhost:3306/orbeon?useUnicode=true&amp;characterEncoding=UTF8"/>
  </GlobalNamingResources> 

properties-local.xml

<property as="xs:string" name="oxf.fr.persistence.provider.*.*.*" value="mysql"/>
<property as="xs:string" name="oxf.fr.persistence.mysql.datasource" value="mysql"/>


Any idea what's wrong!

the context (inside server.xml) should look like this (if you running on tomcat 7), so if any one has the same problem, the solution is below:

<Context path="/orbeon"
                        docBase="F:/apache-tomcat-7.0.56/webapps/orbeon.war"
                        crossContext="true"  reloadable="false" override="true" allowLinking="true">
                       
                        <Resource name="jdbc/mysql" auth="Container" type="javax.sql.DataSource"
                        initialSize="3" maxActive="10" maxIdle="20" maxWait="30000"
                        driverClassName="com.mysql.jdbc.Driver"
                        poolPreparedStatements="true"
                        validationQuery="select 1 from dual"
                        testOnBorrow="true"
                        username="orbeon"
                        password="orbeon"
                        url="jdbc:mysql://localhost:3306/orbeon?useUnicode=true&amp;characterEncoding=UTF8"/>
                </Context>